---
product_id: 337274711
title: "SH-U11F Isolated USB to RS485 RS422 Converter Built-in FTDI chip for Industrial Application"
brand: "dsd tech"
price: "€ 80.00"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dsd Tech"
url: https://www.desertcart.fi/products/337274711-sh-u11f-isolated-usb-to-rs485-rs422-converter-built-in
store_origin: FI
region: Finland
---

# Isolated power & signal protection Supports RS485 & RS422 multi-device networks FTDI chip with up to 3Mbps speed SH-U11F Isolated USB to RS485 RS422 Converter Built-in FTDI chip for Industrial Application

**Brand:** dsd tech
**Price:** € 80.00
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your industrial connections with bulletproof speed and protection!

## Quick Answers

- **What is this?** SH-U11F Isolated USB to RS485 RS422 Converter Built-in FTDI chip for Industrial Application by dsd tech
- **How much does it cost?** € 80.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/337274711-sh-u11f-isolated-usb-to-rs485-rs422-converter-built-in)

## Best For

- dsd tech enthusiasts

## Why This Product

- Trusted dsd tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cross-Platform Ready:** Plug & play with Windows, Mac OS, Linux, and more—perfect for diverse professional environments.
- • **Blazing Fast Data Transfer:** Experience ultra-reliable communication speeds up to 3Mbps powered by the original FTDI FT232RL chip.
- • **Reliable Support & Warranty:** Enjoy peace of mind with 24-hour tech support and a 12-month replacement warranty.
- • **Universal RS485/RS422 Compatibility:** Seamlessly connect up to 32 devices in complex industrial networks with dual protocol support.
- • **Industrial-Grade Isolation Protection:** Safeguard your PC from short circuits and electrical shocks with built-in isolated power and ADI signal chips.

## Overview

The DSD TECH SH-U11F is a rugged USB to RS485/RS422 converter featuring industrial-grade isolation to protect your computer from electrical faults. Equipped with the original FTDI FT232RL chip, it delivers stable data transfer speeds up to 3Mbps and supports multi-device networks of up to 32 nodes. Compatible across Windows, Mac, and Linux platforms, it’s designed for demanding industrial applications with reliable 24/7 technical support and a 12-month warranty.

## Description

SH-U11F is an upgraded version of SH-U11. Compared with SH-U11, SH-U11F adds isolation protection function, which effectively isolates power and communication signals. This design can ensure that the USB interface of your computer or notebook will not be damaged due to short circuit or operating errors, and is especially suitable for various industrial occasions. Through this USB RS485/RS422 adapter, you can quickly access the RS485/RS422 network through a computer. Great for point to multi-point communication with up 32 devices connected per converter! Specification: Model NO: SH-U11F Standard : RS485/RS422 Main chip: FTDI FT232RL Interface: USB Type B ,6 PIN Terminal Block Cable Length: 1.0M/3.2FT RS485 PIN: TXD+(A+), TXD-(B-) RS422 PIN: RxD+, RxD-, TxD+, TxD-, GND USB 2.0; compatible USB 1.1 Baud rate: 300bps to 3Mbps APPLICATION LED display communication data; machine PLC data read, write, and PTZ control; Centralized control of household electrical appliances; access control systems; variety of industrial automation; instrumentation; employee attendance machine; highway toll station; ATM machine. List of supported systems 1,Windows XP,7,8,10 2,Ubuntu 11.10, kernel 3.0.0-19 3,Mac OS X 10.3 to 10.8 (32 &64 bit) 4,Mac OS X 10.9 and above(64 bit) Packing list: 1 X SH-U11F USB to RS485/RS422 Adapter 1 X User manual 1 X CD Driver 1 X USB Type B Cable(1M/3.2FT) WARRANTY: DSD TECH offers a 12-month warranty on this isolated USB to RS485 RS422 Converter. If you have any questions, please contact us and we will resolve your issue within 24 hours.

Review: If you need RS232, RS485 and similar - especially if you want long term reliability/stability, protection from over-voltage, and flexibility, DSD Tech is the way to go. Can’t recommend them enough At this point I’ve purchased probably 2 or 3 dozen UART/TTL USB adapters from other brands/sellers in my lifetime. I used to think “they’re all the same- cheap, but they work” - but I realized over time that eventually ended up in the trash for one of several reasons- voltage not supported, baud rate not supported, or (most common) unexpectedly stopped functioning With most of the other brands, you have to guess what voltage is supported- if you need anything other than 3.3v, it’s a dice roll. Ditto with baud rate. Need to support more than 1Mbps? Very few sellers even know the max rate of the chip, let alone disclose it to buyers The DSD products all have clear and complete documentation so you know exactly what you’re getting- they’ll tell you “this model only supports X and Y voltage”, or “this model has a max of Z baudrate”, so you know which variant to get Most (or all) of the DSD products have isolated circuitry so they don’t fry your USB port (or themselves) when you inevitably connect to the wrong pins You get exactly what the listing says. And they seem to make just about everything. My favorite is the UART TTL adapter that has support via jumpers for 1.8v, 3.3v and 5v and some less common voltages in between I will never buy a no-name brand again- these may use generic chips underneath, but DTD is not a generic brand The prices are very good- maybe a little more than sone competitors- but it’s worth paying a few extra dollars when you know it will do everything you need into the foreseeable future and won’t die either
Review: This product does not work and I can't return it. Nice.

## Features

- Industrial-grade :The built-in isolated power supply and ADI signal isolation chip can effectively protect computer damage caused by accidental short circuit, electric shock and other damage.
- USB to RS485/RS422:Support RS-422 (RxD+, RxD-, TxD+, TxD-, GND) and RS-485(A+, B-, GND) Interface.
- High stability: Built-in original FTDI FT232RL chip,Maximum speed up to 3Mbps
- Compatibility: Works with Windows 10, 7(32/64bit) , XP, 2003,Liunx,Mac OS Etc.
- Customer Support: DSD TECH provides permanent technical support and 1 year product replacement service for this usb to rs485 rs422 converter.All questions will be answered within 1 working day.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083XSG1RG |
| Best Sellers Rank | #37,911 in Computers ( See Top 100 in Computers ) #90 in Serial Adapters |
| Item model number | SH-U11F |
| Manufacturer | DSD TECH |
| Product Dimensions | 10.8 x 10.59 x 2.49 cm; 120 g |

## Product Details

- **Compatible devices:** Laptop
- **Specific uses for product:** (function(f) {var _np=(window.P._namespace("DetailPageProductOverviewTemplatesJava"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) {
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- **Connector type:** usb
- **Colour:** White
- **Item dimensions L x W x H:** 10.8 x 10.6 x 2.5 centimeters

## Images

![SH-U11F Isolated USB to RS485 RS422 Converter Built-in FTDI chip for Industrial Application - Image 1](https://m.media-amazon.com/images/I/71KrA0uml5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 12 January 2024*

If you need RS232, RS485 and similar - especially if you want long term reliability/stability, protection from over-voltage, and flexibility, DSD Tech is the way to go. Can’t recommend them enough At this point I’ve purchased probably 2 or 3 dozen UART/TTL USB adapters from other brands/sellers in my lifetime. I used to think “they’re all the same- cheap, but they work” - but I realized over time that eventually ended up in the trash for one of several reasons- voltage not supported, baud rate not supported, or (most common) unexpectedly stopped functioning With most of the other brands, you have to guess what voltage is supported- if you need anything other than 3.3v, it’s a dice roll. Ditto with baud rate. Need to support more than 1Mbps? Very few sellers even know the max rate of the chip, let alone disclose it to buyers The DSD products all have clear and complete documentation so you know exactly what you’re getting- they’ll tell you “this model only supports X and Y voltage”, or “this model has a max of Z baudrate”, so you know which variant to get Most (or all) of the DSD products have isolated circuitry so they don’t fry your USB port (or themselves) when you inevitably connect to the wrong pins You get exactly what the listing says. And they seem to make just about everything. My favorite is the UART TTL adapter that has support via jumpers for 1.8v, 3.3v and 5v and some less common voltages in between I will never buy a no-name brand again- these may use generic chips underneath, but DTD is not a generic brand The prices are very good- maybe a little more than sone competitors- but it’s worth paying a few extra dollars when you know it will do everything you need into the foreseeable future and won’t die either

### ⭐ Review
*by J***T on 17 August 2020*

This product does not work and I can't return it. Nice.

### ⭐⭐⭐⭐⭐ Review
*by T***K on 23 November 2020*

On initially receiving the unit the output on both serial and USB was corrupted as though baudrate clock not quite set as needed. Seller immediately replaced the device without any quibbles. New part worked fine. Device provides required grounding and possibility to set termination resistance, great in such a device at this price. Great quality in construction as well. Have now tried it in 2-wire 485 and 4-wire 422/485 and found all OK. For the driver on Win10, don't make my mistake - I initially forgot to run install as Administrator and device was not detected. Run install on extracted exe by right click and select "Run as Administrator ..." and all should be good.

## Frequently Bought Together

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-21*